GB/T 46754-2025 Active National standards

GB/T 46754-2025 Pulps—Kraft cooking liquor and black liquor—Determination of hydrosulphide ion concentration(potentiometric titration)

Publish Date: 2025-12-02 Implement Date: 2026-07-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: GB/T 46754-2025

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Paper pulp and cardboard

ICS Name: \nPulp

Publish Date: 2025-12-02

Implement Date: 2026-07-01

Pages: 12 pages

Scope

This document describes the method of determining the concentration of hydrogen sulfide ions in sulfate pulping digester liquor and black liquor using potentiometric titration.
This document is suitable for determining the concentration of hydrogen sulfide ions in white liquor, oxidized white liquor, green liquor, and black liquor with a solids content of no more than 40% in sulfate pulping processes.